Home / 99,477.28-137,280.88-56,459.62

Finding the Fourth Proportional to 99,477.28, 137,280.88 and 56,459.62

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Solution

The fourth proportional to 99,477.28, 137,280.88 and 56,459.62 is: 77,915.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,477.28 : 137,280.88 = 56,459.62 : x
  2. Step 2: Convert to fraction form
    99,477.28/137,280.88 = 56,459.62/x
  3. Step 3: Cross multiply
    99,477.28x = 137,280.88 × 56,459.62
  4. Step 4: Simplify right side
    99,477.28x = 7,750,826,318.07
  5. Step 5: Solve for x
    x = 7,750,826,318.07/99,477.28
  6. Step 6: Final answer
    x = 77,915.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.